MGO tokens haven't been added into MyEtherWallet yet.
How are you going to distribute MGO then?
The token has been added already. From the email which you should have received:
"You can add MGO to your Mist or MEW wallet display by simply putting the following under "add custom token:"
Address: 0x40395044Ac3c0C57051906dA938B54BD6557F212
Symbol: MGO
Decimals: 8
This will allow you to see your MGO token in your ETH wallet once MGO is sent to you."
if i don't add, will it be added automatically?